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METHOD FOR PREPARING SUPPORTED CATALYST FOR HETEROGENEOUS CATALYTIC OZONATION
METHOD FOR PREPARING SUPPORTED CATALYST FOR HETEROGENEOUS CATALYTIC OZONATION
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机译:异相催化臭氧化反应中支撑催化剂的制备方法
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摘要
A method for preparing a catalyst, including: 1) uniformly mixing attapulgite, lithium-manganese spinel (Li—Mn spinel), manganese dioxide powders to form mixed raw material; adding water to the mixed raw material; stirring and mixing the mixed raw material and the water for between 5 and 15 min to yield a reaction mixture; 2) feeding the reaction mixture in 1) to a pelletizer to prepare spherical particles or hollow cylindrical particles; drying the spherical particles or the hollow cylindrical particles to yield a precursor; 3) heating the precursor in a muffle furnace, and calcining the precursor to yield a crude catalyst; 4) mixing the crude catalyst with an acid solution; alternating between ultrasound and microwave to wash the crude catalyst; and 5) washing the crude catalyst in 4) with water; and drying the catalyst for 12 hrs in air at 105° C.
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